Heating covering agent for casting steel piece

A technology of covering agent and exothermic agent, applied in the field of casting auxiliary materials, can solve the problems of unsatisfactory heating and heat preservation effect, reduce the heat preservation performance of covering agent, molten steel pollution, etc., achieve good heat preservation performance, improve heat preservation performance, and purify molten steel.

Active Publication Date: 2012-07-11
鑫工艺(上海)材料科技有限公司
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Problems solved by technology

[0002] The heating covering agent in the prior art often has unsatisfactory heating and heat preservation effects, and excessive use will also cause pollution to molten steel to varying degrees
[0003] At the same time, the traditional covering agent is prone to the defect of carbon increase
The biggest disadvantage of the existing carbon-free covering agent is that it reduces the thermal insulation performance of the covering agent while avoiding carbon increase.

Method used

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  • Heating covering agent for casting steel piece
  • Heating covering agent for casting steel piece
  • Heating covering agent for casting steel piece

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0017] A heat-generating covering agent for cast steel, the weight percentage of each component is: heat-generating agent 5%-25%, heat-retaining agent 10%-20%, triggering agent 3%-8%, wood chips 1%, and the rest are Slagging agent;

[0018] Described exothermic agent is aluminum powder, aluminum ash, and Al in this aluminum powder 2 o 3 Content ≥ 95%, Al in the aluminum ash 2 o 3 The content is 15%~20%, the mixing ratio of aluminum powder and aluminum ash is 1:...

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Abstract

The invention discloses heating covering agent for casting a steel piece. The heating covering agent comprises components by weight percent: 5-25% of heating agent, 10-20% of heat preservation agent, 3-8% of triggering agent, 1% of sawdust, and the balance of slag accretion agent, wherein the heating agent is aluminium powder or aluminium ash, the heat preservation agent is a mixture of vermiculite and floating beads, fluorite powder and sodium fluorosilicate are adopted as the triggering agent, and the slag accretion agent is pearlite. By the study on new materials, the heating covering agent is further improved in the heating and heat preservation performance, and simultaneously realizes an effect of cleaning molten steel. By the application of carbon-free slag accretion materials, the heating covering agent obtains good heat preservation performance while solving problems with recarburization and slag accretion. The carbon-free heating heat preservation covering agent with a slag accretion effect is skillfully designed.

Description

technical field [0001] The invention relates to an auxiliary material for casting, in particular to a heat-generating covering agent for casting. Background technique [0002] The heat-generating covering agent in the prior art often has unsatisfactory heat-retaining effects, and excessive use will also produce varying degrees of pollution to molten steel. [0003] At the same time, the traditional covering agent is prone to the defect of carbon increase. However, the biggest shortcoming of the existing carbon-free covering agent is that it reduces the thermal insulation performance of the covering agent while avoiding carbon increase. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a low-carbon heating covering agent with better comprehensive performance. [0005] In order to solve the problems of the technologies described above, the technical solution of the present invention is as follows: [0006] A heat-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D1/00B22D11/111C21C7/00B22D27/04
Inventor 卜伟施风华张羽
Owner 鑫工艺(上海)材料科技有限公司
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